#include "TcpServer.hpp"
#include "Protocol.hpp"
#include "Calculator.hpp"
#include "Daemon.hpp"
#include <memory>


using namespace LogModule;


using cal_fun = std::function<Response(const Request& req)>;
//计算这里要检测是否有完整的报文
//不完整 -> 继续读
//完整   -> 提取  ->  反序列化  -> Request  -> 计算模块,进行处理

class Parse
{
public:
    Parse(cal_fun c):_cal(c)
    {

    }
    std::string Entry(std::string& package)
    {
        //1. 完整性判断
        std::string message;
        std::string respstr;
        while(Decode(package,&message))
        {
            LOG(LogLevel::DEBUG) << "Content: \n" << message;
            if(message.empty())
            {
                break;
            }
            //2. 反序列化,message是一个曾经被序列化的数据{json}
            Request req;
            if(!req.Deserialize(message))
            {
                break;
            }
            std::cout << "#############" << std::endl;
            req.Print();
            std::cout << "#############" << std::endl;

            //3.计算
            Response resp = _cal(req);

            //4.序列化
            std::string res;
            resp.Serialize(res);
            LOG(LogLevel::DEBUG) << "序列化: \n" << res;

            //5.添加长度报头字段
            Encode(res);
            LOG(LogLevel::DEBUG) << "Encode: \n" << res;

            //6.拼接应答
            respstr += res;
        }
        LOG(LogLevel::DEBUG) << "respstr: \n" << respstr;
        return respstr;
    }
private:
    cal_fun _cal;
};

int main()
{
    // ENABLE_CONSOLE_LOG();
    ENABLE_FILE_LOG();
    Daemon(false,false);
    //1.计算模块
    Calculator mycal;
    //2.解析模块
    Parse myparse([&mycal](const Request& req){
        return mycal.Execute(req);
    });
    //3.通信模块
    //TCP 只负责IO
    std::unique_ptr<TcpServer> tsvr = std::make_unique<TcpServer>([&myparse](std::string& package){
        return myparse.Entry(package);
    });
    tsvr->InitServer();
    tsvr->Start();
    return 0;
}